Polygonal indexable cutting insert



FIG. 1 is a perspective view of an indexable cutting insert showing a first form of our new design;

FIG. 2 is a top plan view of the insert of FIG. 1;

FIG. 3 is a sectional view of the insert of FIG. 2 taken along line 3--3;

FIG. 4 is a top plan view of an indexable cutting insert showing a second form of our new design;

FIG. 5 is a top plan view of an indexable cutting insert showing a third form of our new design;

FIG. 6 is a perspective view of an indexable cutting insert showing a fourth form of our new design; and,

FIG. 7 is a top plan view of the insert of FIG. 6. 

The ornamental design for a polygonal indexable cutting insert, as shown. 